Polyphase isolator switches

Details Polyphase isolator switches Polyphase isolator switches

1977-07-12

1980-01-15

Moy, Joseph Man-Fu

Electricity: circuit makers and breakers

Liquid contact

Time delay

200155R, 200165, 200238, H01H 300

Patent

active

041840585

ABSTRACT:
A polyphase, e.g. three phase, isolator switch, of which the movable contact members of all phases extend through a common bushing insulator mounted in a partition between two compartments for rotation about an axis normal to said partition and are simultaneously moved to make and break the circuit by rotation of said insulator.

REFERENCES:
patent: 2070337 (1937-02-01), Lowell
patent: 3247344 (1966-04-01), Russell
patent: 3372254 (1968-03-01), Burch et al.

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